Participants ready for battle during an attempt to set a Guinness World Record for the largest water balloon fight. The group of 4,256 human water balloon cannons were unable to smash the previous record of 8,957 participants set in 2011 by the University of Kentucky. 300,000 water balloons were thrown during the event at Seattle Center. Photographed on Saturday, August 17, 2013. less

Participants ready for battle during an attempt to set a Guinness World Record for the largest water balloon fight. The group of 4,256 human water balloon cannons were unable to smash the previous record of ... more

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Participants ready for battle during an attempt to set a Guinness... Photo-5059701.68404 - seattlepi.com

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The battle begins during an attempt to set a Guinness World Record for the largest water balloon fight. The group of 4,256 human water balloon cannons were unable to smash the previous record of 8,957.

The battle begins during an attempt to set a Guinness World Record for the largest water balloon fight. The group of 4,256 human water balloon cannons were unable to smash the previous record of 8,957.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

The battle begins during an attempt to set a Guinness World Record... Photo-5059687.68404 - seattlepi.com

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Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain during an attempt to set a Guinness World Record for the largest water balloon fight. The record was not broken but it was discovered that the plastic pools make excellent sleds. less

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain during an attempt to set a Guinness World Record for the largest water balloon fight. The record ... more

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Kiddie pools used to hold water balloons are used to slide down the... Photo-5059696.68404 - seattlepi.com

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A water balloon is squeezed during an attempt to set a Guinness World Record for the largest water balloon fight.

A water balloon is squeezed during an attempt to set a Guinness World Record for the largest water balloon fight.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A water balloon is squeezed during an attempt to set a Guinness... Photo-5059688.68404 - seattlepi.com

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Taboola Gallery Frame Item-85307.68404 - seattlepi.com

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Participants use a kiddie pool used to store balloons for cover.

Participants use a kiddie pool used to store balloons for cover.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Participants use a kiddie pool used to store balloons for cover. Photo-5059691.68404 - seattlepi.com

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People throw balloons.

People throw balloons.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

People throw balloons. Photo-5059689.68404 - seattlepi.com

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A participant runs for cover.

A participant runs for cover.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A participant runs for cover. Photo-5059690.68404 - seattlepi.com

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A participant does a flip while waiting for the balloons to fly.

A participant does a flip while waiting for the balloons to fly.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A participant does a flip while waiting for the balloons to fly. Photo-5059692.68404 - seattlepi.com

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Taboola Gallery Frame Item-85307.68404 - seattlepi.com

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Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Kiddie pools used to hold water balloons are used to slide down the... Photo-5059693.68404 - seattlepi.com

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Water balloons are filled.

Water balloons are filled.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Water balloons are filled. Photo-5059695.68404 - seattlepi.com

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Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Kiddie pools used to hold water balloons are used to slide down the... Photo-5059698.68404 - seattlepi.com

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Participants battle during an attempt to set a Guinness World Record for the largest water balloon fight.

Participants battle during an attempt to set a Guinness World Record for the largest water balloon fight.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Participants battle during an attempt to set a Guinness World... Photo-5059699.68404 - seattlepi.com

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Taboola Gallery Frame Item-85307.68404 - seattlepi.com

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A participant tries to avoid a balloon thrown at him.

A participant tries to avoid a balloon thrown at him.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A participant tries to avoid a balloon thrown at him. Photo-5059700.68404 - seattlepi.com

Image 17 of 40

A participant in a horse mask runs from people sliding in kiddie pools.

A participant in a horse mask runs from people sliding in kiddie pools.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A participant in a horse mask runs from people sliding in kiddie... Photo-5059702.68404 - seattlepi.com

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A man leaps over a person sliding into the International Fountain in a kiddie pool.

A man leaps over a person sliding into the International Fountain in a kiddie pool.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A man leaps over a person sliding into the International Fountain... Photo-5059703.68404 - seattlepi.com

Image 19 of 40

A participant cools off in water during an attempt to set a Guinness World Record for the largest water balloon fight.

A participant cools off in water during an attempt to set a Guinness World Record for the largest water balloon fight.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A participant cools off in water during an attempt to set a... Photo-5059704.68404 - seattlepi.com

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Taboola Gallery Frame Item-85307.68404 - seattlepi.com

Image 21 of 40

A man climbs onto the International Fountain.

A man climbs onto the International Fountain.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A man climbs onto the International Fountain. Photo-5059705.68404 - seattlepi.com

Image 22 of 40

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Kiddie pools used to hold water balloons are used to slide down the... Photo-5059706.68404 - seattlepi.com

The battlefield is shown during an attempt to set a Guinness World Record for the largest water balloon fight.

The battlefield is shown during an attempt to set a Guinness World Record for the largest water balloon fight.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

The battlefield is shown during an attempt to set a Guinness World... Photo-5059709.68404 - seattlepi.com

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Taboola Gallery Frame Item-85307.68404 - seattlepi.com

Image 26 of 40

A single balloon flies through the air, launched from a tarp during an attempt to set a Guinness World Record for the largest water balloon fight.

A single balloon flies through the air, launched from a tarp during an attempt to set a Guinness World Record for the largest water balloon fight.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A single balloon flies through the air, launched from a tarp during... Photo-5059710.68404 - seattlepi.com

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A balloon is thrown during an attempt to set a Guinness World Record for the largest water balloon fight.

A balloon is thrown during an attempt to set a Guinness World Record for the largest water balloon fight.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A balloon is thrown during an attempt to set a Guinness World... Photo-5059711.68404 - seattlepi.com

Image 28 of 40

People sliding in a pool hit a bump.

People sliding in a pool hit a bump.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

People sliding in a pool hit a bump. Photo-5059712.68404 - seattlepi.com

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Participants try to take cover during an attempt to set a Guinness World Record for the largest water balloon fight.

Participants try to take cover during an attempt to set a Guinness World Record for the largest water balloon fight.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Participants try to take cover during an attempt to set a Guinness... Photo-5059713.68404 - seattlepi.com

Image 30 of 40

Taboola Gallery Frame Item-85307.68404 - seattlepi.com

Image 31 of 40

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Kiddie pools used to hold water balloons are used to slide down the... Photo-5059714.68404 - seattlepi.com

Image 32 of 40

People crash as kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

People crash as kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

People crash as kiddie pools used to hold water balloons are used... Photo-5059715.68404 - seattlepi.com

Image 33 of 40

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain during an attempt to set a Guinness World Record for the largest water balloon fight.

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain during an attempt to set a Guinness World Record for the largest water balloon fight.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Kiddie pools used to hold water balloons are used to slide down the... Photo-5059716.68404 - seattlepi.com

Image 34 of 40

Water balloons fly.

Water balloons fly.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Water balloons fly. Photo-5059717.68404 - seattlepi.com

Image 35 of 40

Taboola Gallery Frame Item-85307.68404 - seattlepi.com

Image 36 of 40

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Kiddie pools used to hold water balloons are used to slide down the... Photo-5059718.68404 - seattlepi.com

Image 37 of 40

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Kiddie pools used to hold water balloons are used to slide down the... Photo-5059719.68404 - seattlepi.com

Image 38 of 40

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain.

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

Kiddie pools used to hold water balloons are used to slide down the... Photo-5059720.68404 - seattlepi.com

Image 39 of 40

A participant reacts after hitting a bump as kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain during an attempt to set a Guinness World Record for the largest water balloon fight. The group of 4,256 human water balloon cannons were unable to smash the previous record of 8,957 set in 2011 by the University of Kentucky. 300,000 water balloons were thrown during the event at Seattle Center. less

A participant reacts after hitting a bump as kiddie pools used to hold water balloons are used to slide down the sloped walls of the International Fountain during an attempt to set a Guinness World Record for ... more

Photo: JOSHUA TRUJILLO, SEATTLEPI.COM

A participant reacts after hitting a bump as kiddie pools used to... Photo-5059721.68404 - seattlepi.com